forked from lxm_flutter/FlutterUnit
73 lines
2.0 KiB
Dart
73 lines
2.0 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020-03-23
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/// contact me by email 1981462002@qq.com
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/// 说明:
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// {
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// "widgetId": 120,
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// "name": 'AnimatedAlign基本使用',
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// "priority": 1,
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// "subtitle":
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// "【child】 : 孩子组件 【Widget】\n"
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// "【duration】 : 动画时长 【Duration】\n"
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// "【onEnd】 : 动画结束回调 【Function()】\n"
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// "【alignment】 : 对齐方式 【AlignmentGeometry】\n"
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// "【curve】 : 动画曲线 【Duration】\n"
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// "【padding】 : 内边距 【EdgeInsetsGeometry】",
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// }
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class CustomAnimatedAlign extends StatefulWidget {
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@override
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_CustomAnimatedAlignState createState() => _CustomAnimatedAlignState();
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}
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class _CustomAnimatedAlignState extends State<CustomAnimatedAlign> {
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final Alignment start = Alignment(0, 0);
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final Alignment end = Alignment.bottomRight;
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Alignment _alignment;
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@override
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void initState() {
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_alignment = start;
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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return Column(
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children: <Widget>[
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_buildSwitch(),
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Container(
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color: Colors.grey.withAlpha(22),
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width: 200,
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height: 100,
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child: AnimatedAlign(
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duration: Duration(seconds: 1),
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curve: Curves.fastOutSlowIn,
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alignment: _alignment,
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onEnd: () => print('End'),
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child: Container(
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height: 40,
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width: 80,
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alignment: Alignment.center,
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color: Colors.blue,
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child: Text(
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'张风捷特烈',
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style: TextStyle(color: Colors.white),
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),
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),
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),
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),
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],
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);
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}
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Widget _buildSwitch() => Switch(
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value: _alignment == end,
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onChanged: (v) {
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setState(() {
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_alignment = v ? end : start;
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});
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});
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}
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